US4703080A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aqueous latices having improved coating rheology
Assignee: DeSoto Inc
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Filing: 1985-04-29
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Granted: 1987-10-27
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Expires: 2005-04-29
Abstract
Abstract An aqueous emulsion copolymer of monoethylenically unsaturated monomers which provide a copolymer having a glass transition temperature below 20° C., is modified to include from about 0.3% to about 10% of a monoethylenically unsaturated copolymerizable polyether containing a chain of from about 6 to about 150 C 2 -C 4 oxyalkylene groups, the terminal hydroxy group provided by said chain of oxyalkylene groups being capped with a monofunctional hydrophobic group. These polyethers improve the brush drag of paints made with the emulsion copolymers, and in some instances the leveling is simultaneously improved.
Inventors
- 👤 Gregory D. Shay
- 👤 James E. Devona
- 👤 James E. Kail
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 22:45
CPC Classifications
C; C09; C09D; C09D133/00; C09D133/04; C09D133/06; C09D133/062
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
114 words
A latex paint containing, as the resin binder component of said paint, an aqueous emulsion copolymer of monoethylenically unsaturated monomers which provide a copolymer having a glass transition temperature below 20° C., and which include from about 0.3% to about 10% of a monoethylenically unsaturated copolymerizable polyether containing a chain of from about 6 to about 150 C 2 -C 4 oxyalkylene groups, said chain of oxyalkylene groups being linked to a monofunctional hydrophobic group containing a C 6 to C 30 hydrocarbon group, and said monofunctional hydrophobic group being linked to said chain of oxyalkylene groups by means of a group selected from an ether group, an ester group and a urethane group.
Claim 2
Dependent Claim
114 words
A latex paint containing, as the resin binder component of said paint, an aqueous emulsion copolymer of monoethylenically unsaturated monomers which provide a copolymer having a glass transition temperature below 20° C., and which include from about 0.3% to about 10% of a monoethylenically unsaturated copolymerizable polyether containing a chain of from about 6 to about 150 C 2 -C 4 oxyalkylene groups, said chain of oxyalkylene groups being linked to a monofunctional hydrophobic group containing a C 6 to C 30 hydrocarbon group, and said monofunctional hydrophobic group being linked to said chain of oxyalkylene groups by means of a group selected from an ether group, an ester group and a urethane group.
Claim 3
Dependent Claim
22 words
A paint as recited in claim 1 in which said monomers provide a copolymer having a glass transition temperature below 5° C.
Claim 4
Dependent Claim
27 words
A paint as recited in claim 2 in which said monoethylenically unsaturated copolymerizable polyether is present in an amount of from 1.0% to 5% of the copolymer.
Claim 5
Dependent Claim
17 words
A paint as recited in claim 1 in which said monoethylenically unsaturated copolymerizable polyether contains oxyethylene groups.
Claim 6
Dependent Claim
25 words
A paint as recited in claim 4 in which said monoethylenically unsaturated copolymerizable polyether contains from 10-100 oxyethylene groups and is terminated with a hydrocarbon.
Claim 7
Dependent Claim
27 words
A paint as recited in claim 1 in which said chain of oxyalkylene groups is coupled to the monoethylenic group of said polyether by a carbonyl group.
Claim 8
Dependent Claim
30 words
A paint as recited in claim 1 in which said chain of oxyalkylene groups is coupled to the monoethylenic group of said polyether by a group having the formula: ##STR2##
Claim 9
Dependent Claim
19 words
A paint as recited in claim 1 in which said monoethylenically unsaturated copolymerizable polyether contains a terminal ethylenic group.
Claim 10
Dependent Claim
21 words
A paint as recited in claim 8 in which said terminal ethylenic group is supplied by the acrylic or methacrylic group.
Claim 11
Dependent Claim
21 words
A paint as recited in claim 9 in which said terminal ethylenic group is supplied by an hydroxy-functional acrylate or methacrylate.
Claim 12
Dependent Claim
29 words
A paint as recited in claim 8 in which said monoethylenically unsaturated copolymerizable polyether is terminated by a C 6 -C 30 hydrocarbon group carrying a single hydroxy-reactive group.
Claim 13
Dependent Claim
17 words
A paint as recited in claim 8 in which said terminal group is provided as an ether.
Claim 14
Dependent Claim
17 words
A paint as recited in claim 8 in which said terminal group is provided as an ester.
Claim 15
Dependent Claim
17 words
A paint as recited in claim 8 in which said terminal group is provided as a urethane.
Claim 16
Dependent Claim
16 words
A paint as recited in claim 1 in which said paint is an air drying paint.
References Cited (Backward Citations)
EP0013836A1
Cited
US4351754A
Cited
US4529773A
Cited
JPS598712A
Cited
EP0109820A1
Cited
DE3319062A1
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-10-26 | 1991-04-27 | 1991-10-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-10-26 | 1995-04-27 | 1995-10-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-10-26 | 1999-04-27 | 1999-10-27 | $7700.00 | Window Closed / Lapsed |